Transcript Steel Recycling Process EDSGN 100 Xinli Wu Michael Barton, James Dryden,

Steel Recycling Process
EDSGN 100
Xinli Wu
Michael Barton, James Dryden,
Jacob Schneider, Matt Villani
Sponsored by ArcelorMittal
Design Task
• Primary goal: (from project kick-off presentation)
1. Separate advanced high strength steel (AHSS) from scrap
autos
2. Use mix of AHSS and low carbon aluminum-killed (LCAK) scrap
to make LCAK heat
Research
• Research required to familiarize the team with
steel recycling
– How scrap is processed
– How materials are combined to make steel
– How different alloys affect steel characteristics
– Characteristics of the steel to be sorted (AHSS and
LCAK)
Brainstorming
• Analyzed several potential methods of sorting
scrap
– Magnetism, density, melting point, eddy currents
• Research found that optical emissions
spectrometry could be used to differentiate
between the types of scrap
• Chosen for being a proven, pre-existing
technology
How it works?
• Optical Emission Spectrometer
– Heats up atoms in material
– Different elements give off unique
frequencies of light
– Different frequencies used to determine
material
Steps in Process
1. Scrap steel sorted in Optical Emission
Spectrometer
1
2. Necessary elements added to basic oxygen
furnace.
2
3. Steel is cooled and rolled for shipping.
3